"tRPC" matching MCP tools:

• buy_packA

  FlexYield — blockchain RPC gatewayA

  Start the purchase of a prepaid unit pack (size 's': 1.2M units $10, 'm': 7M $50, 'l': 32M $200, +5 % units when bought here) and get a checkout URL the account owner completes on a card; units become available when the payment lands, are consumed after the plan's monthly quota and stay valid 12 months. Use it when what_can_i_do or a refusal says the monthly budget is running out. Not for changing the plan (web console) and not for reading balances (use get_billing_status). Returns JSON: checkout_url, size, units, bonus_units, total_units, price_usd, note. Creates a checkout; no money moves until a human pays. Needs your API key.

  ConnectorNo auth

• revoke_api_keyA

  FlexYield — blockchain RPC gatewayA

  Revoke one API key of your account by id; calls with that key stop working immediately and the key cannot be restored. Use it when a key leaked or a service is retired; ids come from list_api_keys. Not for pausing a key (set its budget to a small cap with configure_key instead) and not for the key you are calling with unless you hold another. Returns JSON: id, name, revoked_at. Idempotent. Needs your API key.

  Connector

  Destructive

  No auth

• get_balancesA

  FlexYield — blockchain RPC gatewayA

  Native balance and ERC-20 token balances of an address on one chain (eth_mainnet, base_mainnet, arbitrum_one, optimism_mainnet, polygon_pos, solana_mainnet; tokens where a data-capable upstream exists). Use it for a portfolio or a pre-flight funds check. Not for transfer history (use get_history) and not for a raw eth_getBalance you want to shape yourself (use rpc_call). Returns JSON: chain, address, native, tokens, tokens_note. Read-only; costs 10 weighted units, metered on your key. Needs your API key.

  ConnectorNo auth

• get_keyA

  FlexYield — blockchain RPC gatewayA

  Get a FlexYield API key with no signup: public supply, 10,000 weighted units per UTC day, 5 requests/s, every tool. Use it once, when you have no key yet; then send the key as the bearer on every other call. Not for a key you already hold (use what_can_i_do to see where it stands) and not for a human's paid plan (use list_plans). Returns JSON: key (shown once), key_prefix, door (how the key was obtained: public, wallet-bound or owner-adopted), fences (the limits) with doorways (the path past each limit), terms, skill. Creates a key; at most 3 per IP per day. No key needed.

  ConnectorNo auth

• get_billing_statusA

  FlexYield — blockchain RPC gatewayA

  Billing state of your account: tier, whether payments are live, the subscription (plan, interval, price in USD cents, status, period end, cancel-at-period-end), the card on file (brand, last4, expiry — never the number), prepaid pack balances, any founding-price reservation and the soft-landing state. Use it before buy_pack or when a call was refused for budget reasons. Not for usage numbers (use get_usage), invoices (use get_statement) or plan prices (use list_plans). Returns JSON: tier, payments_live, billing_customer, subscription, payment_method, founding_reservation, packs, soft_landing. Read-only; plan changes happen in the web console. Needs your API key.

  ConnectorNo auth

• get_pricesA

  FlexYield — blockchain RPC gatewayA

  Prices. kind='gas' (chain): EIP-1559 gas recommendations (slow/standard/fast) computed from our pool on an EVM chain, 1 weighted unit. kind='token' (symbols, comma-separated e.g. 'ETH,USDC'): current token prices in USD. Use it before sending a transaction (gas) or to value a balance (token). Not for what a FlexYield call costs in units (use get_quote) and not for plan prices (use list_plans). Returns JSON: gas → chain, base_fee_per_gas, recommendations, computed_from, computed_at, unit_weight; token → prices, quote, source, checked_at. Read-only. Needs your API key.

  ConnectorNo auth

• get_quoteA

  FlexYield — blockchain RPC gatewayA

  Quote one JSON-RPC call before making it: the weighted units it costs (standard 1, heavy 2, or not offered) and the USD per 1M units on every lane (a lane = a price tier: cheap, balanced, fast). Use it when an owner asks what a workload would cost or before a heavy method. Not for gas or token prices (use get_prices), plan prices (use list_plans) or your own balances (use get_billing_status). Returns JSON: chain, method, offered, units, tier, multiplier, lanes, note; a method we do not offer returns offered=false with a reason. Read-only. No key needed.

  ConnectorNo auth

• what_can_i_doA

  FlexYield — blockchain RPC gatewayA

  The status overview of the API key you are calling with: its door (how it was obtained: public via get_key, wallet-bound, or adopted by a paying owner), its tier, the budgets left (month, day, prepaid packs), the fences (its limits) each with a doorway (the path past that limit: bind, adopt, buy a pack, or a ticket), your last-30-day volume priced on every lane (a lane = a price tier: cheap, balanced, fast), the break-even sentence (the volume at which a paid plan beats pay-per-call, for your owner), the account features and the other doors. Use it first in a session, and whenever a call was refused, to decide what to do next. Not for detailed usage (use get_usage), billing facts (use get_billing_status) or a single call's price (use get_quote). Returns JSON: you, budgets, fences_as_doorways, volume_30d_units, ladder_at_your_volume, break_even, recommendation, active_advice, account_features, doors, pricing. Read-only; no parameters. Needs your API key.

  ConnectorNo auth

• rpc_callA

  FlexYield — blockchain RPC gatewayA

  Send one JSON-RPC call through the FlexYield gateway — the same routing, failover, cache and meter as POST /rpc/{chain}. chain: 'eth_mainnet' | 'base_mainnet' | 'arbitrum_one' | 'optimism_mainnet' | 'polygon_pos' | 'solana_mainnet'; method e.g. 'eth_blockNumber'; params as the method expects. Use it for any read the shaped tools do not cover (blocks, logs, eth_call, storage) and for sending signed transactions. Not for balances, transfers or transaction status when a shaped tool exists (use get_balances, get_history, get_tx_status — one call, decoded) and not for pricing a call first (use get_quote). Returns JSON: the raw JSON-RPC body — jsonrpc, id, result — or jsonrpc, id, error with our request_id and the doorway in error.data when refused. Metered on your key (standard 1 unit, heavy 2; cache hits 0). Needs your API key.

  ConnectorNo auth

• claim_agent_completeA

  FlexYield — blockchain RPC gatewayA

  Step 2 of claiming an agent: verify the wallet's signature over the message from claim_agent_start and equip the agent with its own budgeted API key (default 50000 requests/month). Use it right after claim_agent_start. Not for the first step and not for changing a budget later (use configure_key). Returns JSON: agent, address, monthly_request_cap, plaintext_token (shown once — store it), note. Creates a key. Needs your API key.

  ConnectorNo auth

• list_plansA

  FlexYield — blockchain RPC gatewayA

  List FlexYield's public plans: price in integer USD cents, billing interval, monthly included units and burst rate limits, plus the enterprise line and the signup URL. Use it to compare plans or before telling an owner what an upgrade costs. Not for what a single call costs (use get_quote), your own tier or balances (use get_billing_status) or the break-even at your volume (use what_can_i_do). Returns JSON: plans[{key, name, price_cents, interval, included_units, rate_limit, …}], enterprise, signup_url. Read-only. No key needed.

  ConnectorNo auth

• join_waitlistA

  FlexYield — blockchain RPC gatewayA

  Join the FlexYield early-access waitlist with an email and a qualifier (developer, investor or curious). Use it only when a human asked to be kept informed; an agent that needs access now should call get_key instead. Not for support (use manage_tickets) or enterprise needs (use join_enterprise_wishlist). Returns JSON: joined, already_on_list. Creates a waitlist entry. No key needed.

  ConnectorNo auth

• get_historyA

  FlexYield — blockchain RPC gatewayA

  Recent asset transfers (sent and received, newest first) of an address on one EVM chain with a data-capable upstream. Use it to answer 'what moved in or out of this address lately'. Not for current balances (use get_balances), one transaction's state (use get_tx_status) or Solana. Returns JSON: chain, address, transfers[]. Read-only; costs 10 weighted units, metered on your key. Needs your API key.

  ConnectorNo auth

• explain_errorA

  FlexYield — blockchain RPC gatewayA

  Explain a FlexYield error code (e.g. -32007): what it means, the steps to take and its doorway (the path past the limit that caused it). Use it whenever a call returned an error with a code you do not know, before retrying or filing a ticket. Not for upstream chain errors that are not ours and not for filing the problem (use manage_tickets with the request_id). Returns JSON: code, http, title, meaning, steps, doorway, decoder; an unknown code returns known=false with a hint. Read-only. No key needed.

  ConnectorNo auth

• bind_key_completeA

  FlexYield — blockchain RPC gatewayA

  Step 2 of binding the API key you are calling with to a wallet: pass the wallet's signature over the message from bind_key_start. Use it right after bind_key_start, with the same key. Not for the first step (use bind_key_start) and not for agent claims (use claim_agent_complete). Returns JSON: bound, door (now wallet-bound), key_prefix, bound_address, fences (the limits) with doorways (the path past each), terms, skill. Idempotent for the same wallet. Needs your API key.

  ConnectorNo auth

• list_api_keysA

  FlexYield — blockchain RPC gatewayA

  List the API keys of your account (scope='keys', default) or its agent fleet with wallet claims and budgets (scope='agents'). Use it to find a key id before configure_key or revoke_api_key, or to see which keys are in use. Not for usage numbers (use get_usage) and not for your own key's standing (use what_can_i_do). Returns JSON: count, keys[{id, name, prefix, status, monthly_request_cap, created_at, last_used_at, agent}] for keys; an array of {name, address, claimed_via, claimed_at, key_id, key_prefix, monthly_request_cap, services_off} for agents. Read-only. Needs your API key.

  ConnectorNo auth

• configure_servicesA

  FlexYield — blockchain RPC gatewayA

  Read or change the account-wide service settings: which gateway services (rpc, data, gas, tx_status, ens, prices, contracts, utils) are enabled and an optional monthly unit cap per service. Use it with no arguments to read; pass enabled and/or caps to change. Not for one key's budget or services (use configure_key). Returns JSON: window, key_id, services[{service, enabled, cap, used}]. A capped service answers error -32014 once month-to-date units reach the cap; a disabled one answers -32012. Needs your API key.

  ConnectorNo auth

• manage_ticketsA

  FlexYield — blockchain RPC gatewayA

  Your support tickets with FlexYield. action='create' (subject, message, optional request_id of the failing call, optional category) opens a ticket with the call's evidence attached; action='list' (optional status); action='get' (reference); action='reply' (reference, message, optional resolve/reopen). Use it when a call was refused or failed and the doorway said to file it, or to follow up. Not for reading what an error code means (use explain_error first) and not for product ideas (use manage_feedback). Returns JSON: create/reply → reference, subject, status, category, priority, channel, created_at, last_activity_at, url; list → tickets; get → the same plus messages, evidence, suggested_paths. Needs your API key.

  ConnectorNo auth

• convert_evmA

  FlexYield — blockchain RPC gatewayA

  Offline EVM utilities, no chain call: op='checksum' (EIP-55 checksum and validity of input=address), op='convert' (unit conversion wei…gwei…eth: input=value, from=unit, to=unit), op='selector' (4-byte selector and topic0 of input=function signature) and op='keccak' (keccak256 of input text). Use it for address hygiene and unit maths before an rpc_call. Not for verifying a signature (use verify_signature) or decoding calldata (use decode_calldata). Returns JSON: checksum → valid_address, checksummed; convert → value, from, to, result; selector → signature, selector, topic0; keccak → input, keccak256. Read-only, deterministic. Needs your API key.

  ConnectorNo auth

• error_conformanceA

  MCP Endpoint Lint - handshake, tool schemas, JSON-RPC errorsA

  FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} — Send five things a real client eventually sends by accident and check what comes back: an unknown method (expects -32601), tools/call naming a tool that does not exist (expects -32602/-32601 or a result with isError), tools/call with no tool name (expects -32602), a body that is not JSON (expects -32700), and a body missing "jsonrpc":"2.0" (expects -32600). Reports the HTTP status and the error code side by side, and flags an HTML error page or a 5xx where a JSON-RPC error belongs — the failure that makes a client report the wrong cause. Makes 5 requests, 6 s each. Example: url='https://mcp.example.com/mcp' — or {} for the fixture, which fails two of the five.

  ConnectorNo auth

• verify_signatureA

  FlexYield — blockchain RPC gatewayA

  Verify a signature offline: mode='personal' checks an EIP-191 personal_sign signature (message, 65-byte 0x signature, optional expected address); mode='siwe' checks a SIWE / EIP-4361 message (the exact signed text plus signature — parses the fields, checks signature and expiry; domain and nonce policy stay with you). Use it to authenticate a wallet-holder or validate a login message. Not for binding or claiming keys on FlexYield (use bind_key_complete / claim_agent_complete, they verify themselves) and not for hashing (use convert_evm). Returns JSON: personal → recovered_address, valid, expected_address; siwe → valid, recovered_address, expired, fields, note. Recovery only — FlexYield never holds keys. Read-only. Needs your API key.

  ConnectorNo auth